Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quais pontos extras são os médios que têm Pontos menores que 6?
 ###Tabelas: CREATE TABLE scoring_leaders (scoring_leaders_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, Touchdowns INT, Extra points INT, Field goals INT, Points INT) CREATE TABLE 2008_nfl_draft (2008_nfl_draft_id AUTO_INCREMENT PRIMARY KEY, Round INT, Pick VARCHAR, Name VARCHAR, Position VARCHAR, College VARCHAR) CREATE TABLE united_kingdom_channel_4 (united_kingdom_channel_4_id AUTO_INCREMENT PRIMARY KEY, Episode number INT, Title VARCHAR, Original airing on Channel 4 VARCHAR, Time of airing on Channel 4 VARCHAR, Original airing on E4 VARCHAR, Time of airing on E4 VARCHAR, Position in Channel 4s ratings a VARCHAR, Position in E4s ratings b VARCHAR, Total viewers VARCHAR) CREATE TABLE 2009_ladder (2009_ladder_id AUTO_INCREMENT PRIMARY KEY, Mid Gippsland FL VARCHAR, Wins INT, Byes INT, Losses INT, Draws INT, Against INT) CREATE TABLE cities_formerly_over_100000_people (cities_formerly_over_100000_people_id AUTO_INCREMENT PRIMARY KEY, City VARCHAR, State VARCHAR, 2010 population VARCHAR, Peak population (year) VARCHAR, Numeric decline from peak population VARCHAR, Percent decline from peak population VARCHAR)  
SELECT AVG Extra points FROM scoring_leaders WHERE Points < 6